Hay baler sleeve



Jan. 13, 1953 G. ALMQUlsT HAY BALER SLEEVE 5 Sheets-Sheet 1 Filed March14, 1951 Sw ma a@ as ATTCJ RNEYS Jan. 13, 1953 G. ALMQUlsT HAY BALERSLEEVE 5 SheetsSheet 2 Filed March 14, 1951 w Mm m uw 1 wm wm Nm Nw mx.amv Mm Tm J Nbm, au15. E .w .www Sw Nn.

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HAY BALER sLEEvE 3 Sheets-Sheet 5 INVENTOR. I` zf/f ATT R N EYE .ENMWU EE E E w n E Em El@ .E EE E Jan. 13, 1953 Filed March 14, 1951 PatentedJan. 13, 1953 UNITED STATES PATENT GFFICE 2,625,097 HAYBALER SLEEVE GusAlmquist, Riverside, Calif;

Application March14, 1951, Serial No. 215,404

Claims.

` `This invention relates to agricultural equipment, and moreparticularly to a .hay orstraw harvesting and baling machine.

The object of the invention is to provide a hay or Istraw baling machinewhich is constructed so that in the event excessive pressure-prematurelybuilds up between the plunger and bales of `straw or hay, the back-ofthe machine will quickly and automatically open to permit discharge ofthe baled hay, whereby damage tothe machine will be -prevented andwhereby there will be no choking up to cause a delay in the harvestingoperations.

Another object of the invention is to provide a hay or straw balingmachine which is -ruggedly constructed and adjustable as desired,whereby in the event the reciprocating plunger encounters too muchresistance or pressure from the baled hay, the back end of the machinewill automatically be opened to safely permit discharge of the bale'dhay.

A further object of the 'invention is to provide a baling machine whichis extremely. simple yand inexpensive to manufacture.

Other objects and advantages will be apparent du-ring the course Iof thefollowing description.

In the accompanying drawings forming a part of this application, and inwhich like numerals are used to designate like parts throughout thesame:

Figure l is a side elevational view of the hay or straw 4baling machineaccording to thepresent.

invention, and with parts broken away and insection;

Figure 2 is a top plan view of the machine of the present invention,with parts broken away `and in section;

Figure 3 is a side elevational view looking at the side opposite fromFigure 1, with parts 'broken and in section;

Figure 4 is a fragmentary top planview showing the position ofthe partswhen in'their open.

position to permit the 4baled hay .to drop out. of the rear of themachine;

Figures 5 and 6 are fragmentary, horizontal, sectionalviews showingdierentpositions ofthe plunger and trip mechanism;

Figure '7 is a fragmentary side elevational view of the plunger, withparts broken away and in section;

Figure 8 is a sectional view taken on the line 8-8 of Figure 7;

Figure 9 is a sectional view taken through the which may be made of*Iany suitable material, and the frame of the machine 3|] is y.supportedby ground-engaging wheels 32, Figure f1, the wheels 32 being mounted yona horizontally disposed axle 3|. The framework is connected to the axle3| by means of ears 33, and angle irons 34'v and 35 .are secured beneaththe vehicle or framework, whereby a -conventional straw pickup mechanismcan be attached and used with the baling machine oi the presentinvention.

The baling machine includes a vertically disposed rst plate 36 whichhasa pair of 'angle iron-s 31 securedthereto, as by welding, Figures 2andl2. Securedto the first plate 36 in any suitable manner, as bywelding, is .a housing 38, and asec'ond vertically disposed plate 3911shingedly Yconnected tothe housing 38 .by means of a hinge .40, FigureZ.Thus, the plate 39 can pivot. or swing aboutxa vertical. axis extendingthrough .the hinge 40. An angle iron v4I is secured to eachv of theupper and lower edges of the plate 39, and the pair of plates and theircorresponding angle irons cooperate to define apa'ssageway or chamber.42 through which ,thel

bales of straw B pass. The housing 38 is prow'd'ed with a horizontallydisposed top wall 44,

'Figure 7, zand arranged. in spaced parallel relation below the. topwall 44 is a bottom wall 43. The housing 38 i-s furtherv provided withvertically v,.disposed, spaced, parallel side walls 45 and 45. The sidewall 45 is-provided with a cutout or opening 41, Figures 5, 6 and 8,andan end portion 4.8 of a lever 49 is ,arranged in registry with thevopening 41 for a purpose to be later described. The lever 49 .is.-pivotally mounted between a pair of ears 50 by means of a pin 5I, theears '50 being secured, as .by welding, to the plate 35, the plate 36.terminating in the wall 45.

VrSecured to the rear end of the lever 49. and

arrangedtransverselywith respect thereto isa barl52f, Figure 12.. A.vertically `disposed arm 53 isl secured, as by welding, tothe angleirons 4l which are .connected to the plate 33. A pair of 1 tatedmanually in order to insure that the mechly engage the arm 53 and bar52.

vscrew members 55 rotatably or threadedly enspacedjparallel,horizontally disposed turnbuckle Vassemblies 54 -serve to connect the.arm 53 .to the bar52. Each of the turnbuckle assemblies 54 includes apair of screw members 55 which pivotal- The pair of gage a shell 5t.vInitially, when the tripping mechanism is being set, the shell 55 can beroanism trips at theV desired time.r

Extending from one side of the housing 38 and. secured thereto is ahopper 51, Figure 5.. .The hopper 5l provides` a means. for loading themachine with hay or straw, .and the straw or hay can be loaded either byhand or by a conventional .loading machine.

A means isfprovided for maintaining the proper tension on thebales ofhay B so as to insure that 4 the machine functions properly. This meanscomprises a brace 58 which is vertically disposed and Which is securedto the rear ends of the angle irons 31, Figures 4 and l2. A pair ofspaced, parallel, horizontally disposed rods 59 extend through the brace58 and through the arm 53, and a washer 66 is arranged on one end ofeach of the rods 59. A nut 6| is arranged in threaded engagement withthe ends of the rods 59 adjacent the washers 60 for maintaining theparts in assembled relation, and a coil spring 62 is circumposed on eachof the rods 59. The coil springs 62 serve to normally urge the plate 39toward the plate 36 so that proper pressure will be maintained on thebales of hay B during the baling operations, as shown in Figure 2. i

' Mounted for sliding or reciprocatory movement in the housing 38 is aplunger 63, Figure 6. The plunger 63 includes a casing 64, and thecasing 64 comprises a pair of spaced, parallel vertically disposed sidemembers 65 and 66. The casing 64 of the plunger 63 further includes ahorizontally disposed top member 61 which is provided with a cutout 68,Figure 4, whereby access can be had to the interior ofthe plunger inorder to adjust the parts therein. A horizontally disposed bottom member69 is arranged in spaced, parallel relation below the top member61.Mounted for sliding movement in the casing 64 isa head 16, and the head18 is provided with inturned,

transverse flanges 1I which insure a tight t be- 'i tween the pressurehead 10 and the casing 64. Secured to the inner surface of the pressurehead 10 is a first U-shaped bracket 12, while secured to the back member18 of the casing 64 is a second U- shaped bracket 13. A first pair ofspaced, parallel links 14 are pivotally connected to the rst bracket 12by pins or bolt-and-nut assemblies 15, and extending between the outerends of the pair of links 14is a pin 'I6 which serves to support there-`on a roller 11. The roller 11 is engaged by `or engages the end portion48 of the lever 49 when pressure exceeds a predetermined amount on thestraw bales, so as to trip the lever 49 and permit the plate 39 topivot, whereby the bales of straw or hay can be discharged. The roller11 is adapted to move through a cutout or opening 19 in the side member66. A second pair of links 80, Figures and 6, are pivotally connected tothe second bracket 13 by means of bolt-and-nut assemblies Sl, and theouter ends of the links 80 are pivotally connected to the links 14 bymeans of bolt-and-nut assemblies 82. For guiding the pressure head 1Uduring its sliding movement, guide pins or rods 83 have one end securedto the inner surface of the pressure head 10, and the other ends of thepins or rods 82 slidably project through the back member 18 of thecasing 64.

` Extending through the back member 18 is an exteriorly threaded shaft84, and the shaft 84 is provided with a socket 85 in one end thereof,Figure 5. A guide pin 86 projects from the iirst bracket 12 and slidablyseats in the socket 85. Arranged in threaded engagement with the shaftB4 is a stop nut 81, and a coil spring 88 is circumposed on the shaft 84and interposed between the nut 81 and the bracket 12. `Arranged on eachside of the back member 18 and threadedly engaging the shaft 84 is apair of lock nuts 89, and secured to the front end of the shaft 64 is abushing 90.

The machine is further provided with a means for causing reciprocatorysliding movement of the plunger 63. This means comprises a horizontallydisposed shaft 9i which has a pulley 92 mounted thereon. A suitable belt(not shown) is adapted 4 to be trained over the pulley 92, and the beltmay be driven from a tractor, orfany other power source, such as avgasoline engine." Also mounted on the shaft 9i are ilywheels 93, andsmall gears 94, which mesh with large gears 95, the large v gears 95being mounted on stud shafts 99, Figures 1 and 2. A crank pin 91 extendsbetween the pair of large gears and is arranged off center, and a rod orarm 96 has one end pivotally connected to the crank pin 91 and its otherend pivotally connected by means of a pin 98 to the bushing 9U which isarranged on the front end of the shaft 84.

From the foregoing, it is apparent that a baling machine has beenprovided wherein hay, straw, corn stalks and other roughage grown on thefarm can be quickly and economically baled. The means for tying theWires around the bales of straw or hay are not shown, since anyconventional tying means can be used. Power may be supplied foroperatingl the machine either from a tractor or from an auxiliaryengine. Thus, a belt driven by a power source may be trained overapulley 92 for causing a reciprocation of the plunger. When the `machineis driven by a trac- G tor, it is adapted for stationary operation, and

when it is operated by a gasoline auxiliary engine, it is adapted formobile baling operations. Also. any suitable feeding mechanism may beused for feeding the hay or straw through the hopper 51 into themachine. The plunger 63 which is actuated by the pitrnan or rod 96compresses each charge by forcing it into the bale chamber 4 2. Thus,the pulley 92 is rotated to thereby rotate the shaft 9|, and this causesrotation of the iiywheel 93, small gears 94 and consequently the largegears 95. The large gears 95 are mounted on the stud shafts 99, androtation of the gears 95 causes the arm 96 to be reciprocated so thatthe plunger 63 will move back and forth in the housing 38. As theplunger 463 moves back and forth, the charge of straw or hay iscompressed and forced into the bale chamber. Loose hayor straw is fedinto the housing 318 through the feed hopper 51, and this material to bebaled can either be fed by machine or by hand. After the straw is formedin bales, it drops out the back of the machine, the bales ofstraw or haybeing indicated by the letter B. The bales of straw or hay are formed inthe baling chamber 42 which is formed by the pair of vertically disposedplates 39 and 36 and their associated angle irons. Normally, theseplates occupy the positions shown in Figure 2, and it will be seenv thatthe side plates 39 can swing about the hinge 40. The proper amount oftension is applied to the side plates 39,

by means of the springs 62 whichare mounted on the rods 59. Thus, thesprings 62 serve to urge the plates 39 toward the stationary plate 36.

' By adjusting the tension on the springs 62 by' means of the nut 6l,the compactness of the bale B being formed can be regulated. As theplunger 63 works back and forth, the straw or hay is continuallycompressed and baled, but occasionally the pressure builds upexcessively in the baling chamber 42. If this happens, the pressure head1U will be moved back into the casing 64 of the plunger 63. Thus, thepressure head 10 will move from the position shown in Figure 5 to theposition shown in Figure 6, and this. inward movement of the pressurehead 10 will cause the links 14 and 80 to pivot to thereby cause theroller 11 to move out of the opening in the side of the housing 38. Asthe roller 11 moves out of the housing, it pivots the lever 49 about thepin 5I 1n a counterclockwise direction, as shown in Figure 4, so thatthe pair of turnbuckle assemblies 54 will move the rear end of the plate3S away from the stationary plate 36 and permit the bale B to drop outof the rear end of the machine. Thus, choking up will be prevented andthere will be no delay in baling operations, nor will there be anydamage to the machinery as a result of excessive pressure building up inthe baling chamber. During the return stroke of the plunger 63, or afterthe straw bales B have dropped out of the rear end of the balingchamber, the pressure on the head 'l0 will be relieved so that the headwill move from the position shown in Figure 6 back to the position shownin Figure 5, and also, the roller 11 will be withdrawn into the housing38 so that normal baling operations can be continued. The turnbuckleassemblies 54 can be initially adjusted in order to properly set theposition of the plate 39 in order to insure that the plate 39 pivots atthe desired time. The tripping mechanism incorporated in the apparatusoperates quickly and automatically. In Figure 2, the parts are shown intheir normal positions, so that bales of straw B are formed between theplates 39 and 36, while in Figure 4, the olate 39 is shown in itstripped or open position l-o as to permit the bales B to drop out of therear end of the machine when excessive pressure builds up in the chamber42.

What is claimed is:

1. In a mobile straw baling machine, a housing, a plunger reciprocablymounted in said housing and adapted to be reciprocated by a powersource, a feed hopper projecting from one side of said housing for theingress therethrough of straw to be baled, a first vertically disposedstationary plate extending rearwardly from said housing, a second platehingedly connected to said housing and arranged in spaced relation withrespect to said first plate, said plates enacting to dene a balingchamber, means connecting the free ends of said plates together, and atrip' mechanism for selectively permitting pivotal movement of saidsecond plate away from said rst plate, said trip mechanism comprising alever pivotally connected to said first plate, a roller carried by saidplunger for engaging one end of said lever, an arm secured to saidsecond plate, a bar secured to said lever, and turnbuckle assembliesextending between said bar and said arm.

2. 'I'he apparatus as described in claim 1, wherein said means embodiesa pair of rods extending between said pair of plates, and coil springscircumposed on said rods for maintaining the proper tension on the strawbeing baled.

3. The apparatus as described in claim 1, wherein said plunger includesa casing, and a pressure head movably mounted in said casing.

4. In a straw baling machine, a rst vertically A disposed plate havingangle irons secured thereto, a housing secured to said plate, a feedhopper projecting from one side of said housing for the ingresstherethrough of straw to be baled, a second vertically disposed platehaving angle irons secured thereto and having one end hingedly connectedto said housing, said plates providing a baling chamber for slidablysupporting the straw, a vertically disposed arm secured to the free endof said second plate, a pair of spaced parallel horizontally disposedturnbuckle assemblies adjustably connected to said arm, a level`pivotally connected to the outer surface of said first plate, a barsecured to said lever and pivotally connected to said turnbuckleassemblies, a plunger reciprocably arranged in said housing, there beingopenings in said housing and said plunger, said plunger comprising acasing provided with a vertically disposed back member, a head slidablymounted in said casing, a rst U-shaped bracket secured to said head, athreaded shaft extending through said back member and provided with aninternal socket in one end thereof, a guide pin projecting from saidbracket for engaging said socket, an adjusting nut mounted on saidshaft, a coil spring circumposed on said shaft and interposed betweensaid adjusting nut and said iirst bracket for normally urging saidpressure head away from said back member, a second U-shaped bracketsecured to the inner surface of said back member, a first pair of linkspivotally connected to said first bracket, a second pair of linkspivotally connected to said second bracket and to said first pair oflinks, and a roller supported by said first pair of links.

5. In a straw baling machine, a iirst vertically disposed plate havingangle irons secured thereto, a housing secured to said plate, a feedhopper projecting from one side of said housing for the ingresstherethrough of straw to be baled, a second vertically disposed platehaving angle irons secured thereto and having one end hingedly connectedto said housing, said plates providing a baling chamber for slidablysupporting the straw, a vertically disposed arm secured to the free endof said second plate, a pair of spaced parallel horizontally disposedturnbuckle assemblies adjustably connected to said arm, a leverpivotally connected to the outer surface of said rst plate, a barsecured to said lever and pivotally connected to said turnbuckleassemblies, a plunger reciprocably arranged in said housing, there beingopenings in said housing and said plunger, said plunger comprising acasing provided with a vertically disposed back member, a head slidablymounted in said casing, a rst U-shaped bracket secured to said head, athreaded shaft extending through said back member and provided with aninternal socket in one end thereof, a guide pin projecting from saidbracket for engaging said socket, an adjusting nut mounted on saidshaft, a coil spring circumposed on said shaft and interposed betweensaid adjusting nut and said rst bracket for normally urging saidpressure head away from said back member, a second U-shaped bracketsecured to the inner surface of said back member, a rst pair of linkspivotally connected to said rst bracket, a second pair of linkspivotally connected to said second bracket and said rst pair of links,and a roller supported by said rst pair of links, said roller beingengaged by said lever whereby when the pressure on the straw being baledexceeds a predetermined amount, the head will move into the casing toraise the roller, pivot the lever and cause the second plate to swingaway from the rst plate whereby the baled straw can drop out of the rearof the machine.

GUS ALMQUIST.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 358,898 Sooy Mar. 8, 1887 362,884Ertel May 10, 1887 1,065,648 Wygant June 24, 1913 1,333,068 Evans et al.Mar. 9, 1920

